Moody's Corporation provides credit ratings and assessment services; and credit, capital markets, and economic research, data, and analytical tools worldwide. It operates through two segments, Moody's Investors Service and Moody's Analytics. The Moody's Investors Service segment publishes credit ratings and provides assessment services on various debt obligations and entities that issue such obligations, such as various corporate and governmental obligations, structured finance securities, and commercial paper programs. This segment provides ratings in approximately 130 countries. Its ratings are disseminated through press releases to the public through print and electronic media, including the Internet and real-time information systems used by securities traders and investors. As of December 31, 2019, this segment had ratings relationships with approximately 4,900 non-financial corporate issuers; 4,100 financial institutions issuers; 17,200 public finance issuers; and 1,000 infrastruc